Steam-engine



@1 MBL) V.A W. BEESON E W. B, BONINE.

y STEAM ENGINE. No. 402,889. A Patented May 7, 1889.

N. PUERS. moumgnphr. wnningwn. DIC.

UNITED STATES ATENT OFFICE.

VOLNEY W. BEESON AND WALTER B. BONINE, OF PERRY, IOWA.

sTEAMll-:VNGIN E.

SPECIFICATION forming part of Letters Patent No. 402,889, dated May 7,1889. Application tiled December 8, 1888. Serial No. 293,003. (Nomodel.)

To all whom, t may concern.-

Be it known that we, VOLNEY W. BEEsoN and WALTER B. BONINE, citizens ofthe United States of America, residing at Perry,`in the county of Dallasand State of Iowa, have invented certain new and useful Improvements inSteam-Engines; and we do hereby declare the following to be a full,clear, and eXactdescription of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters orfigures of reference marked thereon, which form a part of thisspecification.

Our invention relates to improvements in steam-engines; and it consistsin a novel construction and arrangement or combination of mechanicaldevices, more fully hereinafter described and claimed.

The essential features of the improvement consist of a headless cylinderwith a centrally-situated unattached automatically-operating valve andtwo pistons connected to piston-rods which are of themselves suitablyattached.

The object of the invention is to simplify the construction andoperation of the parts of an engine of this class, and to render themconvenient and accessible and strong and durable. NVe attain this objectbythe preferred forms of construction illustrated in the accompany ingdrawings, wherein likeletters of reference designate similar parts inthe several views, and in which Figure 1 is a sectional elevation of oneform of our improved engine. Fig. 2 is a top plan view of the form ofvalve shown in Fig. l. Fig. 3 is a sectional elevation of aslightlyvaried form of the engine. Fig. 4 is a detail perspective viewof the form of valve used in the engine shown in Fig. 3.

A indicates the headless cylinder, composed of two parts centrallyconnected by a centrally-bulged union or collar,B. In Fig. l theexhaust-ports a are formed inthe cylinder adjacent to the outer endsthereof, and in Fig. 2 said ports are formed nearer the center. A space,a', is provided between the two centrally-situated opposing ends of thesections of thecylinder A, between and against which the flange C of avalve, C, is loosely seated and has alternate bearing. As shown in Figs.1 and 2, the said valve C is con structed of a solid disk of metalhaving a flange, C', operating as above set forth, and having a seriesof grooves or notches, c, in the upper and lower edges thereof. Theunion or collar B has an ingress port or connection, b, adapted to beconnected to a boiler..

Pistons P are provided, and are of any suitable or preferredconstruction. The said pistons are attached to piston-rods P', which. inturn are connected to the ends of a yoke, P2, having a central aperturedenlargement adapted to slide on a rod, P3. The said piston-rods P may beotherwise attached and connected to other mechanism, and may eX- tendthrough the valve C, and be thereby continuous. We do not limitourselves to any single form of construction in this instance.

The valve represented in Figs. 3 and 4 is slightly modified inconstruction. In this instance the flange C is used, as hereinbeforedescribed. Extending from each head of the valve-disk C are solid headsc3, having rightangular lianges c4, holding an annular disk, c. Theflanges or wings c4, with the outer disk, c', form steam-passages. InFig. l the pistons P alternately bear directly against the valvedisk Cover the grooves or notches therein, and in Fig. 3 the said pistons bearon the upper ends of the heads c3 and cover the openings or passagesbetween the same and the annular disks c.

In Fig. l the pistons are shown as iinishing the upstroke, and thevalve-disk C is drawn up -with its fia-nge bearing upon and closing the-upper section of cylinder A. The reverse position is represented inFig. 3. As shown in Fig. l, the steam is exhausting from the uppercylindrical section, and has commenced to flow against the lower piston,P, and will force it down, as in Fig. 3. When said lower pistou, Fig. l,reaches the eXtrernity of the downstroke and has passed the lower port,a, the steam exhausts and the valvedisk C drops down and its iange bearsagainst the end of the lower cylindrical section. It will be understoodthat the upper piston has been drawn down, and again' ready to be actedupon. The steam passes through the grooves or notches c in thisinstance, and strikes against the end of the piston.

In the form shown in Fig. 3 the steam passes IOO through the passagesformed between the heads c3 and disks c of the valve, and inipinges orstrikes full upon the end of the piston. The disk o closes the ports auntil the pistons have reached the extremity of stroke, when said disksare drawn over said ports to leave them open and in condition forexhaust, as shown in the lower cylindrical section of Fig. 3.

The operation is substantially the same in both of the devices shown. Itwill be understood that we do not limit ourselves to any exactarrangement of the cylinder A, as it can be in either a vertical o1'horizontal position.

The inain advantage gained by our improved construction is, dispensingwith the use of cylinder-heads, eccentric-rod stuffingboxes, and variousminor appurtenances now commonly employed. The steam is taken theopposite way from the ordinary direction, and work can be done by eitherend of the engine. The cylinder can be cast on a bed or used separate,as shown.

Having thus described our invention, we claimmm l. The combination,substantially as den scribed, of the two-part cylinder provided withexit-ports and centrallywith a constantlyopen ingress-port, two pistonsconnected to move together, and the centrally-flanged valve looselyseated between the pistons and provided with extended ends which projectinto the path of the advancing piston.

2. The combination, substantially as described, of the sectionalcylinder having exitports and connected centrally by a bulged unionhavingv a constantlyopen ingressport, a loose disk-valve having anannular flange seated loosely between the inner ends of thecylinder-sections, and provided with extended ends adapted to projectinto the path of an advancing,` piston, the pistons mounted in eachsection of the cylinder, the piston-rods, and the yoke to connect thepistons. i

In testimony whereof we aiix our signatures in presence oil twowitnesses.

VOLNEY W. BEESON. VALTER ll. BONINE. lVitnesses:

W. S. JoNEs, W. A. ROLAND.

